DNS

check_dns_host

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Description:

Check A/PTR records for a host. Support for checking returnval vs. an array for matching valid response(s), threshhold for number of returned responses, and timeout values.

Current Version

Last Release Date

June 22, 2009

Compatible With

Owner

Nagios Exchange

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Project Files
FileDescription
check_dns_host.pl

Initial public release, 1.0

Project Notes
Perl, uses (requires): Net::DNS Getopt::Long Array::Compare Pod::Usage Time::HiRes / Example service definition: define service{ use generic-service hostgroup_name deathstar* servicegroups dns_alerts service_description DNS_forward check_command check_dns_host_forward_match!1 notification_options c } define service{ use generic-service hostgroup_name deathstar* servicegroups dns_alerts service_description DNS_reverse check_command check_dns_host_reverse_match!1 notification_options c } / Example command definition: define command{ command_name check_dns_host_forward_match command_line $USER1$/check_dns_host.pl -H $HOSTALIAS$ -q FORWARD -w 50 -c 500 -m $HOSTADDRESS$ -r $ARG1$ } define command{ command_name check_dns_host_reverse_match command_line $USER1$/check_dns_host.pl -H $HOSTADDRESS$ -q REVERSE -w 50 -c 500 -m $HOSTALIAS$ -r $ARG1$ }
Reviews (3) Add a Review
Reverse not working
by Tozz, May 31, 2014
Checking for reverse doesn't work, eg.:

#check_dns_host.pl -H 8.8.8.8.in-addr.arpa -Q REVERSE -W 1000 -C 1000

DNS OK! QUERYRETURNCODE=(NOERROR => 8.8.8.8.in-addr.arpa) ANSWERS=(0) QUERY_RETURNVAL=() ELAPSED=(8 ms) | DurationMS=8

Reverse checks always return ANSWERS=(0).

Forward seems to work fine.
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working from terminal NOT from Nagios
by steprog, November 30, 2013
from the commnd line runs without error ONLY if I change the line in the sub query_check like
"if (defined ($match)) {"
But Nagios always report the error "(Service check did not exit properly) "
Any suggestion?
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sub query_check
by rmarx, May 31, 2013
On sub query_check, match verification:

if (defined $match)

replaced by:
if (defined @match)
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